Machine for shaping uppers over lasts



Sept. 9, 1952 T. A. KEsTELl. 2,609,552

MACHINE FOR sHAPING UPPERs ovER LAsTs Filed March 1v. 1949 4sheets-sheet 1 F. l v Inuenoh /Lg l Thomas; A. lsell Sept. 9, 1952 T. A.KEsTELl.

MACHINE FOR sHAPING uPPERs ovER LAsTs 4 Sheets-Sheet 2 Filed March 17.1949 fnueno Thomas/1 Kese By L' @L ww Tlllll Ill Sept. 9, 1952 T. A.Kl-:sTELL MACHINE FOR SHAPING uPPERs OVER LAsTs 4 Sheets-Sheet 5 FiledMarch 17. 1949 Invenor Thomas A. Kese/Z Sept. 9, 1952 T. A. KESTELL2,509,552

MACHINE FOR SHAPING UPPERS OVER LAsTs Filed Maron 17. 1949 4sheets-sheet 4 4 fnveno .Thomas A. Kese/l invention relatesr to machinesfor' use in x thfe" manufacture of shoes for shaping uppers overlasts,and more particularly to machines having meansfor grippingthemarginal portion of anv upper gona last and for pullingthe upper. Amonge its objects, the invention has especially in View' the provision ofcertain improvementsinmachines known as pulling-'over machines, whichare commonly` provided with grippers Vfor gripping. the marginaljportionof the 'upper respectively at the end ofthe toeand vthe sides 'of the'forepart andv for pulling the upper over the last and alsoiwith means,for thereafter driving fastening's to r fasten the "upper `inVpullediover condition. The vinven-v tion'is herein shown as applied to apulling-over machine of thev type exemplified by the disclosure of"United Statesv LettersPatent No. 1,962,250, grantedjron June'12, 1934,on an application of W.' f1. B. Roberts, in which the `shoe occupiesaninclined position with its bottom facing downwardlyand rearwardly,but'the inventionis not' limited to an-organization in'which the shoe ispositioned in that particular manner.

Before presenting a shoe to a pulling-over machine it isN a commonpractice, in the interest of goodshoemak'ing, to apply a preliminarypull to the* toe end of the upper and'thereb'y to tighten the"upper'lengthwise of theA last preparatory to they pull to be appliedthereto by the toe gripper inge-the course ofv a cycle of poweroperations ofA thev machine. For this purpose it is customary 'to""useeither hand pincers or bench pincers such as` 'shown in United StatesLetters Patent No'.

1,139,613, granted on May 18', 1915, on an appli'l cation of P. J.Wentworth'. Thepreliminary pull thus appliedserves, amongotheradvantages, to'

' upper between the` jaws of *the Vseveral grippers.

1t will be'ev'ident thatpreparation of theupper in the manner abovedescribed requires a substantialv amount of time and that ,considerablecare andjskill also are required thus" to prepareit and to'hold it inproper position on the last while presenting the shoe tothe 'machine'.The presenty invention accordingly vprovides means associatedwitlitheftoe gripper for' gripping'y the toe Yend of the ppeafte theshoehas"'be'n presented in has'abeen customary heretofore- In themetion'herein shown kthe preliminary'pull isrelected-by vfurther movementof theabove=,men-gI Varid combinations of parts', win iiow 15e 'or'l" yf Ti'iomaseiibrey Resten; Leinster England as signorto United ShoeMachinery-Corporatio11,v

Flemington-,"Nxik, 'a corporation of'NeW Jersey [Aiiiijliciiiiqnjluarch,177, 1949;- sefia No.L 815911 1 InGreat-Britain April 9, 1948 es'claims." (01. iig-10.74) t positionfor 'thefpullingover operationandi frj applyingY a preliminary pull. tov the, upper hiero" it is grippedbythe toe grippenthusjelimin the need` for such `preparation fof' ltheupp applied by addiiionai toe- "gripperspositiii spectivelyat oppositeTsides ofhthe main toe grip-f' per V'and rli "ving jawsveo arranged astorec'eive the margin ofethetoe encl'of` theupp'i b them without thenecessity for anys'p -Y on theoperators part presenting the shoe, theadditional grippers being closed and operated to pull'thefupp'er'by atreadle prior te the start 'l oftliecycle efoperations'oithe mchi e. Y eadditienallgripper's are moved a `direction!mer nearly-lengthwise of thelast than the'main- 'teeVJ` gripper and-*serve to presentthemarg'in ofthf upper betweenthe javi/S, O f the mainftoefgijip in proper'position tobe gripped by the latter ift? thestarting'r ofA the machine, Ythead'di-tienalri'p-1V 'A persA releasing thelupp'er automatically v'aff-teit4 has thus been gripped. Conveniently, as'Afurt herein `illustrated,the starting' o f the niaelijv tione'd treadle. N

4TheV invention further provides novel gripper'-YY operating andcontrolling means, herein shown A associated withl the addiiioiiaijtogrinders" t i' netf thus limitedin lits applicability. In 4the cen-'struction shown each of thesegrippersg isii'rs'fv closedcn the upperthrough gripper-closingm anisinand isthereafter operated to pull tlifeuper ley-continued force appliedtol this mechanism in the gripper-closingdirection, a device-'5eme f` vided for locking it positively'against'uppl movement until it has thus been clos for then automaticallyreleasing it; Thegrippe' closing mechanism includesa toggle which ystraightenedto `close the gripper and is; the eaf broken by furthermovement in the same;y tion to cause Ythe gripper` toA release theupper; A Straightening. ofthe toggle bein mitd'bv which thereafterreleases' it tfpermit s' c ther movement thelof, i As urther'hereimated; the; closing of iijieigjiipper by' the f ening oi theftoggle 'andyits movement he t to'Y pull theV upperv are effected thrpi assojciated'witn'wiiiciiis positif/ineens arranged? to suppiemeiii ine-force oftnesjpriiig'iiearuie of the' gripper-closing,operation to nsurejthe,

stiai'g e'niiig of tiieto'ggiei yThe above. and other features of, theijiiv including various novel pdtai1s'tficorstu lines and the greaterportion of the rest of the machine in broken lines, with parts omitted;

Fig. 1a is a plan view of certain treadles shown in Fig. 1;

Fig. 2 is mainly a plan view, on an enlarged scale, of the additionaltoe grippers and of parts associated therewith;

Fig. 3 is a view in left-hand side elevation of the structure shown inFig. 2, illustrating the position of the toe end of a shoe when the shoeis presented to the machine;

Fig, 4 is a front View of a portion of the machine, showing the main toegripper, the side grippers, the additional toe grippers and a shoe restwith which the machine is provided;

Fig. 5 is a section on the line V-V of FigJB;

'Figs. 6,"7 and 8 are views similar to Fig. 3, on a smaller scale,showing the positions of the parts at different times in the operationof the machine; and Y Fig.` 9 is a view in left-hand side elevation ofthe main toe gripper and of controlling mechanism associated therewith,parts of this mechanism beingbroken away.

Invview of the disclosures in the previously mentioned Letters PatentNo. 1,962,260, and in others, of characteristic features of machines ofthe type to which the invention is shown as applied, includingespecially the disclosure in United States Letters Patent No. 1,029,387,granted June 11, 1912 on an application of R. F. McFeely, the machineherein shown will be described in detail only in so far as is necessaryfor an understandingof the invention. A machine of this type includes ashoe rest 2 (Fig. 4) which, when the machine is organized as shown inLetters Patent No. 1,962,260, is so arranged that the shoe occupiesaninclined position in the machine with its bottom facing downwardly andtoward the rear of the' machine, the shoe rest including two presserfeet 4 which engage the insole at the opposite sides ofy the forepartand another presser foot 6 which engages it near the end of the toe. Theupper of the `shoe sov positioned is pulled over the last by a toegripper 8 which grips and pulls it at the end of the .toe and byopposite side grippers l0 which grip and pull it at the opposite sidesof the forepart, respectively. The several grippers thus pull the upperin downwardly and rearwardly inclined of the main toe gripper or withthe operations f directions in the rst stage of a cycle of poweroperations of the machine initiated by depression of a starting treadlel2 (Fig. l), after which the machine comes automatically to a stop withthe upper held under tension to permit the operator to inspect the workand to make any necessary adjurstments. Thereafter the operator againdepresses' the treadle l2 to initiate'the second stage ofthe cycle ofoperations during which the margin of the upper is wiped inwardly overthe insole and tacks are driven to fasten it in pulled-over position,the grippers releasing the upper. Near the end of this stage of thecycle the parts of the machine are returned to their starting positions.

For purposes of this invention the machine is provided with a pair ofadditional toe grippers I4 located respectively at opposite sides of themain 4 ditional grippers comprises a relatively xed lower jaw IBextending in a generally horizontal plane and an upper jaw I8 pivotallymounted on a pin 20 on the lower jaw for swinging movements toward andfrom the latter. As shown in Fig. 4, the upper-engaging face of eachlowerjaw,.which is serrated, is arranged to extend in -a somewhatdownwardly inclined direction widthwise of the shoe away from the maintoe gripper. 'Ihe additional toe grippers are preferably so adjusted, ina manner" hereinafter described, that their lower laws I6 are positionedat substantially the same level as the forwardly extendingupper-engaging portion of -a lower'jaw 22 of the main toe gripper 8 whenthis gripperis properly adjusted lengthwise of the shoe by means withwhich machines of the type herein shown are provided. The addithough theupper materials are somewhat scantily' tout. It will be understood thatthe limit of the forward movements of the additional grippers will beadjustably varied in accordance with the scantiness of the uppermaterials. l

To outline briefly the purpose and the manner of operation of theadditional toe grippers, it may be stated at this point that after theoperator J has presented a last with an upper loosely assembled thereonto the machine with the marginal portion of the toe end of the uppermaterials overlying the lower jaws I6 of the additional grippers, hecauses these grippers to grip the upper and to4 move rearwardly to applya yielding pull to the upper in a direction generallylengthwise of thelast by depression of a treadle 24 (Fig. l). In this operation theadditional grippers present the marginal portion of the upper inposition `to be properly gripped by the lower jaw 22 and an upper jaw 26of the main toe gripper 8. The additional grippers hold the upper untilit is gripped by the main toe gripper substantially at the beginning ofthe cycle of operations ofthe machine, whereupon they are automaticallyopened and are quickly moved farther rearwardly to positions where theyvdo not interfere with the normal upper-pulling action of otherinstrumentalities of the machine.

To facilitate, the positioning of the marginal portion of the uppermaterials between the open jaws of the'main toe gripper by theadditional toe grippers in the manner above described, the

jaws ofthe main toe gripper are differentin shape from those of thecorresponding gripper shown in Letters Patent No. 1,962,260. A.That is,V vthey are so shaped that the upper-gripping faces of the jaws when thegripper is closed extendv in substantially horizontal directionsforwardly and rearwardly of the machine. These faces, morein downwardlyinclined directions widthwise of the machinev as hereinabove described.It will be evident that this curvature. toe gripper A8k (Figs. 2 andfl)Each of vthese ad- 75 9f the JWS 0f .the main toeglppel and theitlGii-f` nationsvof. the upper-gripping faces ofthe lower I jaws'loftheadditionalgrippers, in view of the natural curvature ofthe marginalportion roffthe toe endof the. upper as it'lies looselycn ,the lastwhen. the work is presented to the machine,

facilitates the presentation of thev upper to the:

grippers by the operator. A portion o f the upper jaw 26 of the main toegripper at the rear of its serrated upper-engaging'face is hollowed out,as shown at 28 (Fig. 3), toinsure that in any event themargin of theupper materials pulled between the jaws .of the main toe gripper bytheaddif tional grippers will not tend `to interfere with the properclosing of they main toe gripper. The serrated upper-engaging faces ofthe` jaws of the additional grippers may extend, for example,

about half an inch lengthwiseof theupper, and the. rear edges of thesefaces. vwhen the grippers ar'eclosed maybe spaced about half Van inchforwardly of theV pivot pins 20. Insurance is ythus afforded that thesegrippers will properly grip, not lonly the outer layer of the uppermaterials,

but'also any inner layer which may terminate ofthese brackets is suchthat the additional toe f grippers I4 are about an inch and a half apartwith the main toe gripper 8 between them. The two brackets 36 aresuitablybolted together in the above-,mentioned spaced relation and arepositioned respectively at opposite sides of a central bracket 38 whichis secured toa portion of the frame of the machine. v n has an upwardlyextending portion provided near its upper end with ribs i9 (Fig..5), oneon eachside thereof, which lie in parallel inclined guideways` 42 in thebrackets 36. adjustably secured to` the bracket 38 by a bolt 44 anda nut136 (Fig. 5), the bolt extending These brackets vare Y This centralb-racket through inclined slots 158L (Fig. 3) in the brackets f 36 andthrougha bore inthe bracket38. .The bolt 44 hasA ahead 5 0 lprovidedwith a vflattened portion which engages a surface on the righthandbracket 36 to prevent the bolt from turn.- ing. The glldeways 42 in theybrackets`36 and the ribsd) on the bracket38 are so inclined that thebrackets 36 may be adjusted relatively to the bracket 38 in forwardlyand rearwardly inclined directions each at an angle of approximately-45to the horizontal.A By such adjustment the lower jaws`l6 of theadditional toe grippers are caused to move in paths substantiallyparallel to the inclination ofthe shoe rest 2 and also approximatelyparallel to the path of adjustingy movef ment, of they main toe gripperin directions lengthwise`V of the shoev for shoes of Adiierent lengths.persmaybe readily adjusted to occupy similar initial positionsrelatively to the main toe gripper in its diierent adjusted positions,the adjustment of the' additional grippers being effected by looseningthe nut 46, moving the brackets. along the ribs 4E' and" thereaftertightening the nut,` An'upwardly and forwardly extending portion of thebracket 38"(Fig. 1.) supports lat, its front. enda tipglineLgagingrclevice. 52 withlwhieh; a pulling?,

Accordingly, the' additional toe gripf smemberin vided: f

VThe movable kupper jaws I8 ',Qfa thei iditlnnab toegrippers. which are,pivotally -molintedson th pins 2l] as hereinbeforedescribed-, arearrangedgv to extend upwardly inftheir fully, openpositions withiheir'serrated upper-engaging faces;.subf-,y This enables the.;operators readilyA lto y-I osi11ior-1 the marginal portion car-the.:kupper in proper relation tothelower jawszlin :Dre senting the-.workftothe frnachiine.;` For- Swingin the Aupper jaws Atoward the flower.,yjawswtozgrip: the Upper, .there arepivotally connected. vtotzhefTupperjaws, ,by :means ofrstudsf 54, front end;por,:. i .i tionsefrod-likeclinkstt. When the upperfiaws: y I8k arein ,fullyopenypositionspthelinks 56 ex?` tend' downwardly :and rearwardly: asshown in; Fig; 3,the 'rearV end portions ofthe .links belngg.. slidablymountedy in bores 5,8 drilled diamstrically@A through transverse pivotDns whichare-.roflk tatably mounted in alined bearingsin bifurcatedr vend portions of links 62.1 The-.other Aends'ofthe;l 1 links 62 are'secured to-gear segments564'pivf-- otally mounted for swingingmovementson transf- Springs68 surrounding the links-56 are mounted betweenvthepins 60 and nuts 'I0 ythreadedon the linksf.. Collars 12faston therear endsof'the links.- 561 prevent these links from movingforwardlylouts.V

stantially vertical.

verse pins-66 secured rto the arms v30.

of the bores 58 in the pins 60 under the action'of theesprings 68.

shown in Fig. 6 the jaws I8 are swung about the pins 28 toward the jawsI6,` the springsA 68 being compressed toan extent depending uponthethickness of the upper materials between theVV upper and lowerA jaws.

TheV gear segments 64 are in-meshwith teeth* cut in the lower faces ofsmallrack membersfM haVIlgT-Shaped ribs 'I6 (Fig. 2) slidingl-y mounts;

ed in correspondingly shaped guidewaysf 'I8 the slides 3,2.

bars 14, are slide bars 86.

rearwardly extending lugs 84 to whichis pivotally connected by means ofa pin 86 'arrearwa'rdly exi" Y" tending link 88 operated as hereinafterdescribedJV TheA crossbar 82 has end portions projecting widthwise ofthe machine somewhat 'beyond the slide bars 88 and provided' with pins96 which serve to anchorA the rearends oftension springs 92, the frontendsof these springs being anchored- Y to the rackmembers 'I4-by meansof threadedrods 94 extending. Hrearwardly from outturnedlugs 96 on thefront ends of ythe rack members; f

The threaded rods 94 extend freelythrough bores` in the lugs 96 and havenuts 98 Vthereon by meanswf `of Which-thetension of the springs 92.canbe-'I- varied, locknuts |60 being provided Vattherear:l of the lugsfor holding theV rods; in adjustedf 1' positions. When the parts, areinv their. initial-` y positions, kasv shown in Figs.1f2andiBp-.theorackf are held` br the. snringsfs 2: wltlritheir 1.a

The links 56 and 62 constitute` jaw-controlling togglesfor closingl andopening the additional toe grippers, thee tOggIesbeingv` brokendownwardly, as shown in'Fig. 3, when thel jaws I 8 arein their initialopen positions. Whenr l the togglesare straightened to.- theposition'sif accepte-2 rear' end faces in abutting relation to the frontend faces of the slide bars 8 0, the slide bars being positioned at thistime as determined by engagement ofthe crossbar 82 with the rear ends ofthe slides 32.vv A spring |02 (Fig. l) connected to the above-mentionedlink 88' by means hereinafter described tends to move the slide bars 60inforward directions and, through engagement of the crossbar 82 with therear ends of the slides 32. also -to move these slides in forwarddirections. Such forward movement's'of the slides 32 are limited byengagement of stop plates |04 (Fig.-

3) extending downwardly from the rear ends of the slides with a crossbar|06 which extends widthwise of Vthe machine just below thelower edges ofthe brackets 36 andis secured at its opposite ends to forwardlyextending plates |08 adju'stably secured to thebrackets 36 by bolts 0extending into the brackets through slots ||2 in the plates.Accordingly,`by adjustment of the plates |08 relatively to the brackets36 the initial positions-of the additional toe grippers with respectto-forward and rearward movements may be .variably determined withoutvarying the height at which they are positioned in the machine. `It willbe understood that this adjustment is effected with reference to thescantiness or fullness of theuppers of the shoes on which the machine isto operate. l

The above-mentioned link88 connected to the crossbar 82 is pivotallyconnected at its rear end (Figi 1) to the upper end of an arm y| I4which is fast o-n a transverse shaft l I6 rotatably mounted inbracketsIIS, the brackets being secured, one at each side ofthe machine, to acolumn |20 forming part of the frame of the machine. Also fast on theshaft I6 is an arm |22 pivotally connected to the upper end of adownwardly and forwardly extending rod |24 the lower end portion ofwhich is slidingly mounted in a transverse bore formed in a stud |26rotatably supported Yon the rear end of an arm |28. This armis'pivotally mounted on a rod |30 on the frame and is connected by alink` |32 to an upwardly extending arm |34 fast on a shaft |361, thisshaft having also fast thereon thev previously mentioned treadle 24.Depression of this treadle, therefore, swings the arm .|28 in` adownward direction against the resistance of a return spring 31, and bythe'engagement ofthe stud |26 on the arm with a nut 38 on the lower endof the rod |24 the .rod is moved downwardly against resistance of thespring |02 to impart rearward movement to thecrossbar 82 and .the slidebars 80. As the crossbar 82 is thus moved rearwardly it acts throughrthesprings 92 to move the'rack members 14 alsogin that direction and,`through the action of lthese rack members on the gearA segments 64, tostraighten the toggles formed by the links 56r and 62 and thereby toswing the jaws I6V of the additional grippers toward the jaws '|6 to 'ygrip the marginal portion of the upper.

Toavoid the necessity of usingunduly strong their front ends tooutwardly extending lugs |42 y l Dinsl .gonithe crossbar'82. Threaded onthe rear edsof these rods are nutsV |44 which initially are spacedsubstantial distances rearwardly from the pins 90. Accordingly, when thecrossbar is moved rearwardly it acts first through the springs 92 in themanner above described until the toggles 56, 62 have been nearlystraightened, lafter vwhich the engagement of the pins with the nuts |44causes the crossbar to act positively through the rods |40 fully tostraighten the toggles.

During the above-described closing of the additional grippers by therearward movement of the crossbar 82 movements of the slides 32 inrearward directions by the force applied through the springs 92 .arepositively prevented. For this .purpose two latch members |46, one oneach of the slides 32, are pivotally mounted on shouldered studs |48V onthe slides. These latch members have stop' faces |50 arranged to engagestop faces formed on small blocks |52 secured to the plates |08. Tensionsprings |54 connected to the latch members and to pins |56 on the slides32 hold the latch members normally in the positions illustrated in Fig.3 to prevent rearward `movements of the slid-es. It will be evident thatsince the blocks |52 are secured to the plates |08 which Vare adjustableto Vary the limits of forward movement of the slides 32, they are inpositions to cooperate properly with the latch members |46 regardless ofsuch adjustments. For swinging the latch members |46 about the studs |48to release the slides 32 for rearward movement, there are fast on thegear segments 64 segmentlike plates |58 arranged to engage pins |60 onthe latch members and lto swing these members as the above-describedjaw-closing toggles arrive in their straightened positions. 'Upon suchrelease of the slides 32 they .are moved rearwardly by the alreadytensioned springs 92 to cause the additional grippers to pull the upperand to position its margin between the jaws of the main toe gripper 8,the rearward movements of theadditional grippers ceasing when theresistance oiered by the upper materials balances the force of thesprings 82. each of the additional grippers is thus operated through theseparate spring 92 associated therewith, the grippers may 'be moveddifferent distances depending upon the resistance of the differentportions of the upper materials on which they act. To hold the crossbar82 in its rearmost position after the pull on the upper, even though theoperator releases the treadle 24, there is provided a latch |62pivotally mounted on one of the brackets 36 for swinging movements abouta stud |64. This latch has in its rear end portion a recess providing ashoulder |66 for holding engagement with the crossbar.

In order to .prevent the toggles 56, 62 from being broken upwardlybeyond their straightened positions in the closing of the gripper jawsI8 on the upper, mechanisms are provided which act through the latches|46, the pins |60 and the segment plates |58 to limit the. turningmovements of the gear segments 64 at this time.

These mechanisms include pawls |68 secured on 'I b latches when they areoperated bythe segment plates |50 to release the slides 32 (see Fig. 6)

It will be evident that since downward and. rearward directions..

In ithis manner' turning. of thegear `sectors 64' ifisfstopped when thetogglesarriveintheir fully A*straightened positions.

To position the last lengthwise"whenfsthework is'presented toithemachine. theilower. jaw 22 of the main toe. gripper 3. has;anabutmentface 16 thereon. for engagement with the toe endof the lastiorof the insole. To' prevent the last from -moving .lengthwise inarearward direction during thepulling of .the .upper by the additionalftoegrippers the .usuali downwardly andrearwardlly extending bar |18(Fig. 9) .of the maintoe gripper .has thereon. a .member |580 providedwith .-arecess |82 to receive 'a roll. |84 mounted on .a`rgripper-controlling armiI86. When the .gripper barzisinits uppermostposition, as it is` when the additional grippers pull. theupper, theroll |84. is ivvithinV the .recess ,|82 and the arm I prevents anyrearward swingingmovement ofthe mainfftoe gripper. Whenthe bar :IIzis:moved `downwardly to close the gripper on the upper 'and tojpull theupper at the beginning .of the cycle of. operations .of ithetmachinethe.. member |80.. is 'carried downwardly' beyond Ythe roll |84.

The .arm |80 corresponds otherwise purpose andfunction to thegripper-controlling. arm` 343 yishown inthe previously mentioned LettersPatent i No.` 1,029,387. It will; therefore be .understoodthat ritz-.isthrough movements .ofthis arm that the main toe. gripper is `adjusted.inrdirections lengthwise'of. thelasttand iscontrolled with respect .toforward andY rearward .swinging movements in` the :course .of theoperation .of the machine.

After the additional 'toe' grippers have .been

operated by the treadle 24 to apply their pull to theupper, theoperator; if.' he is'satisfied with the pullingofthe upper by thesevgrippers, depresses the treadle I2 to start the power operation of'the..machine. Conveniently the treadle :2d .has thereon a bar: |31T(Fig. la) extending over the treadle I2, so thatV the depression of thelatter maybe effected by further lmovement of the treadle. 24. Iftheoperator isnot satisfied with themanner in which the upper has beengripped andpulledbythe additional grippers, hemay,

before 4starting 'the cycle of operations, cause `these grippers torelease the upper and to revturn'to their initial positions. For thispurpose there is provided a handlever |88 mounted for VVswingingmovements on one .of the' brackets 36 'and'arranged to act-throughanarm|530 andV a lirikflilZ to lift thelatch .|52 and .thus to releasefthecrossbar 82. It will be understood that when the crossbar is thusreleased the parts are returned to their :initial positions bythesprings A.92.and |02. Y

. After having pulled the upper and `positioned Ait relatively to thermain toe gripper, the additional toe gripperscontinue .to hold it'untilVthe main. toe gripper is closed thereon near the beginning of vthe cycleof operations. As soon as .themain .toe'gripper .has "closed, theadditional grippers are opened and are then moved quickly in. arearwarddirection by vthe springs "92 to out-of-the-way positions while thecrossbar.82 isstill'lheldbythe :latch |62, the limits tof such rearward.movements of the additionalv grippers 'being determined by engagementof small plates |94 ontheslides 32with the front end vfaces of thebracketsv 36. For thus automatically causing the additional grippers toopen and toy move rear- Awardly 'the inner ends of theV rotatable studsITB-"have integrally formed thereon smallfingers I9 ofgeneral'lytriangular. shapev which extend'in frame. .is varranged to `be-.engagedby'an abutment-'AIB 'gers lieadjacent tothe inner `faces of the brackets36, bracketsbeing provided with forwardly :and rearwardly' extendingslots through which the .studs I i'I 0 extend and. along which they'moveduring the rearward movements of the slidesl'32. ..Midway between theiropposite ends the studs their front ends on studs=202-projectinginwardlyVfrom the brackets 93B. The inner side; portions of these brackets areprovided withV forwardly andzrearwardly :extending recesses to' .provideclearance for the .armsa200 and .for the fngers |95. The .ll-shapedlever-20| ispivotallycon- .nected at its rear'end tov the=upper end of a.downwardly and rearwardly; extending rod .204

yieldingly -connected throughja compression springf205 tor-the Arearend-fof an arm V-2Ili^(Fig.

l.) fast on a shaft 208 which has-also fast thereonfan'arm 2I'0. The-shaft-208is journaledjin extendingf downwardly and rearwardly-f.therefrom, the lower end of thebracket 2 |2be ings ecured toamember2^|4which formsfpartcfsthe The :front .endportion yor. they .arm-2 i 0 extending outwardly from Athe vrear endf ofthe usual --updrawlever-r2|8-connectedto the-bar |18 (Fig. v.il))j.ofj.the. main toe.gripper V8v. .Itf-will be understood that-.the vrear` end :of thisAupdraw lever swings downward in operating thefgri-pper tdpullthe upper.`rI'he arrangementwissuchY y that as-this lever 'swingsdownwardsu-ciently tocause themain toe gripper-tof;closerori-ithc rupper the-abutment 2|6 gimparts -vdownward swinging movement to' the4arm-2 I0 against-.the :resistance of a return-springiZI'Q; connected-tothe arm .205 and, through fthe `mechanism defscribed, .swingsl thearms-f 2007of x:the Uy-shaped :trip.lever '20| upwardly about the: studs1202. The upper-Ledges oftheearms thereupon-engage the fingers |96,regardless. of the distanceA these .-ngers have been moved in rearwarddirections during the upper-pulling action' offthe.V addi-.tional-toegrippers, and swing lthe Vlingers-in't1-,1e

directionsto withdraw the pawls g I B8 ,from-1 engagement. with theVstop f faces |14.- on.- the A.latches |46. This permits IVthelgear-segmentslflliui'toabe f swung Y still 4farther inlcounterclockwisevv Vdirections with reference-to Fig.-3 bythe'springs.92, thus causing. thetoggles 56, 62 to. break in upwarddirections (Fig.) and partially tofopenmthe additional-'grippers I4.Upon such openingsof `vthese grippers they are immediately retracted byAthe springs 92 vto the :positions determined-.by

engagement cf theplatesr 94 withfthebrackets-.

:Near the end of, the. .cycle of operationsjhe latch I 62 isswung-upwardly, by means hereinafter' described, toV release thecrossbar 82; whereupon .the spring l|02 (Figi) -by-itsactionpn the rod|24, the arms ,|22 and .I I4 and-theilink 08 imparts forward: movementtov thecrosstbar.

As the crossbar. is .thus moved forwardlyv the slide springs 6% ilo-the@gravare-meramente tee .toggles 56, 62 from the positions shown in Fig.7 the 'forward movement of the crossbar rst causes the slides 32 and theparts carried thereby'to be moved forwardly to the initial positionsdetermined by engagement of the plates |04 with the crossbar |06.AThereafter the crossbar 82 is moved forward relatively to the slides32, caus- Y ing the toggles to be swung downwardly and thereby fully toopen the additional toe grippers. As the gear segments 64 are thusturned reversely the plates |58 thereon are swung upwardly, thuspermitting the springs |54 and |12 to return the latches |46 and thepawls |68 to their initial positions.

For swinging the latch |62 upwardly as above described the latch hasextending laterally therefrom a small pin 220,(Fig. 3) arranged to beengaged by a shoulder 222 on a latch-releasing ringer 224 locatedbetween the rear end portions v4of the brackets 36 and pivotally mountedon a pin 226 extending transversely from an upper end portion of a link228. The pin 226 is guided for vertical sliding movements in slots 230formed in the rear end portions of the brackets 36. The

link 228 extends downwardly and rearwardly (Fig. 1) and is pivotallyconnected at its lower end to the upper end of a latch-releasinglever232 rwhich is pivotally mounted between its oplpo'site lends on a pin234 on the bracket 2|2.

Mounted in the lower end of the lever 232 is a screw 236 adjustablysecured to the lever by a locknut. A spring 238 (Fig. 3) connected to`a`rearwardly extending tail portion 246 of the nger 224 and to the link228 tends to swing the finger in a counterclockwisedirection with Y'reference to Fig. 3 and, when the crossbar 82 is held by the latch |62in its rearmost position,

holds the finger in a substantially verticalposition against the pin 220(Fig. 6). Prior to the beginning of the cycle of operations of themachine, however, and during a portion of the cycle the finger ismaintained at such a height that its shoulder 222 is above the level ofthe pin 220, as shown in Figs. 6 and '7. The finger is maintained atthis height by engagement of a member 242 (Fig. 1) with the screw 236 onthe lever 232. The member 242 is a portion of mechanism ineluded in amachine of the type shown for swinging the wiping and tacking devicesinwardly toward the shoe after the pulling of the upper,

yfor releasing the tack drivers to cause them to drive the tacks and forlater retracting the drivers and returning the devices to their initialpositions. Such mechanism is identiiied as spreader mechanism 120 inUnited States Letters Patent No. 2,305,535, granted on December l5, 1942on an application of H. Lane, and the member 242 herein showncorresponds to one of the members 184 shown in said Letters Patent. Inthe second stage of the cycle of operations of the machine this memberis moved in a forwardly and downwardly inclined direction, and near theend of the cycle it is moved reversely toward the rear of the machineand is also swung iirst upwardly "and then downwardly. When the memberYis moved as above described in a forwardly and Vdownwardly inclineddirection it disengages the 'screw 236 and thereby releases the lever232,

lthe pin 226 (Fig. 3) is at the lower ends of the slots 2 30. When themember 242 is thereafter moved reversely toward the rear of the machineand is swung upwardly as above described* near the end of the cycle itis carried to a position where it is again over the screw 236, and inits subsequent downward swinging movement it swings the lever 232 inthedirection to impart upward movement to the nger 224, thusV causing thenger to lift the latch |62 and thereby to release 'the Vcrossbar 82(Fig. 8). As the crossbar 82 approaches the limit of its forwardmovement after it has thus been releasedxby the latch |62 a small plate246 carried by the crossbar and extending forwardly therefrom -betweenthe brackets 35 strikes a pin 248extending from the latch-releasingfinger 224 and swings the ringer forwardly to carry its shoulder 222Vclear of the pin 220, thus permitting the latch |62 to be swungdownwardly Aby gravity into engagement with the crossbar.;82 ready tohold the crossbar when it is moved rearwardly in the operation of themachine on the nextshoe, at which time the link 228 will notv have beenmoved downwardly to lower the iingen The plate 246 is so arranged thatregardless of the initial positions of the slides 32 and the crossbar82, depending upon the position to which the crossbar |66 has beenadjusted, the linger 224 is swung far .enough forwardly by the plate torelease the pin 220. `When the crossbar |66 is positioned at or' nearthe limit of its forward adjusting movement the plate 246, afterswinging the iinger 224to the position inwhich it is shown in Fig. 3,rides overl the top of the pin 248, as shown. Whenthe crossbar |06 ispositioned farther rearwardly, the movements of the slides 32 and thecrossbar 82 may be arrested before the iinger 224has been swung farenough forwardly to permit the plate 246 toride over the pin 248. 1

In pulling-over machines of the typeshown in Letters Patent No.1,962,260 it has been customary for the toe gripper to close and atleast to begin the pulling of the'upper prior` to the closing andpulling action ofthe side gripper-s. Since in the machine herein shownthe additional toe grippers apply a lengthwise pull to the upper priorto the closing of the main toe'gripper, it has been found to beunnecessary for the main toe gripper to close and to begin itsupperpulling action prior to the closing and pulling actions of the sidegrippers. For this reason it is preferable to shape the cam which.operates Ythe side grippers in such manner that they grip and pull theupper at substantially the same time as the main toe gripper. Theside-gripperoperating cam is, therefore, operative during a greaterportion of the cycle than heretofore, and this has rendered lessnecessary, in operating on some kinds of upper materials, the use of auid check or dashpot such as shown in United States Letters Patent No.2,007,973, granted on July 16, 1935, on an application of B. Jorgensen,for retarding the upper-pulling movements of the side grippers.

While the manner inwhich the mechanism provided by the present inventionis used and operated will be understood from the foregoing description,it will now be briefly summarized. The operator will, if necessary,adjust the main toe gripper 8 in a direction lengthwise of the shoe, inthe manner customary in pulling-over machines of the type shown, inaccordance with the size of the shoes on which the machine is tooperate. He will also adjust the brackets 36 upwardly or downwardly inthe inclined path determined by the ribs 40 on the bracket 38 toposiencaisse 1.'."13 the lower lj aWs |61 of .theradditionalitoegripwardor rearward. directionl ofthe cross-bar |06 ,.'andithe plates |553. Theextent of thisadiustment will depend upon the degree of scantiness withwhich the uppers of. the. shoes to be operated :Having made theadjustments above described, =the operator presents a :last having anupper zloosely assembled thereonto themachine, `the r'lasthaving on itsbottom face .aninsole which is either loosely .mounted thereon ortemporarily secured thereto by one or more tacksV and which .is.presented iny engagement with the shoe restV E.

y Inithus'presentingthe shoe to the machinethe .:operator positions thetoe' end ofthe last or thev kedge of the insole thereonagainst'therabutmentf race |16 on the lower jawf22 of the main toegripper 3, as shown in Figiand positionsthe marvfgin'al. portionv of thetoe-end of the upper matefrials on the horizontal lower jawsI-Goi-theadditional toegrippers I4 and over a portion-of the v lower jaw22 of thermain toe gripper.

Having thus presented the shoe-to the machine, V-the operator depressesthe treadle 24, thus caus- 'ing the additional toe grippers to grip themar- `gin-'of the v'upper and then to move rearwardly -to'apply-.a -pullto-'the upper lengthwise orf the Vlast in the manner hereinbeioredescribed, these grippers, in thus pulling the lippen-presenting 4itsmargin in proper position-between the jaws of the 'main toe gripper(fFigp). Since lthe addi` tional grippers are spacedy a substantialdistance *ra-part, they apply their` pull over asubstantial widthwiseextent of the upper, as is considered desirable. The additionalgrippers, after thus pulling the upper, are held by the latch |62against return movements while maintaining the upper under tension.Ief'the operator is notsatisiie'd with the manner in which the upper isthus jpulled, he liftsV the latch |62 by means of the 'hand lever |88and'thus causes the'additional grippers, to return to their initialpositions and tolrelease the upper preparatory to gripping and pullingita. second time. Otherwise the operator starts the cycleY oi operationsof the machine by further-depressing 'the treadle '24 to Vcause' the bar|81 thereon to depress the starting treadle i2, It will be understoodthat as the treadle 24 fis *thus f'urther'depressed the tension of 'thesprings iiiis somewhat further increased by'rearvwardinox/ement ofA thecrossbar beyond'the `positioirinL ywhich 'it is held' by' the latch |62.

"Shortlyafter the starting ofthe cycle of 'operations the main toegripper 8 and also the side ""grippers In are closed'on Athe upper andfare moved downward in Arearwardly inclined direcltions tojpullv theupper. As the updraw leverY 2|!)` -pawlsff |68n to' lrelease thelatches. |46, whereupon thejjaw-'closing toggles 5 6, 62V of' the'additional "toen grippers *are vbroken f in jupward" directions (Fig.v7) A'bytheV action of the" springs`- 92' to cause Vthesegrippers1z0-release the upper'andtobe moved farther rearwardlyby Athe springs toout-2 (if-the-wavl positions: TheV main toe`l gripper and Aftl'iesidegrippersl 'beginto pull:,'Ltheruppersimullta-i'ieously; but' Ain*accordance with ="the""usual manneriv of apperationf= of-armachineoixftheritype .ushowni the rnainitc'e;gripper movesmorerragzpidly, v-.than therrside grippersf-andziin thefcourse (1f-th lfupper--pullingoperation relieves .theiforoe soffrits 5 .cpull.:somewhat 'and then 1 increases :the ."forceszof the pull ,while the.;sidergrippers VAare .fsteadilyrinf frcreasing thez-forcewhichl theyAvapply to'. the .Lup- After-fthe .pull the machine Vcomes llanto- 1maticai'ly@torni-stop :asusual whilethe'upper':is

i held under tension pato. permit inspectionfrof: the y 'supper V:andfany necessary@adj ustment.. lThere- 'darter-the operatorstarts'thermachine again'rto fcausel itzto completefathe cycle.In'this'stagezf'of fthe icyclefthej wiping iand tacking :devicesy are'.iffffswiung :inwardly toward the i vshoe `to wipe 1. the

margin :of the' :upper .z inwardly over theains'ole r--andwthestackdrivers Vare:thenfoperatedto drive theeupperefastening*'tacks;thesev`operatioiisg-.ffmscurring in. response .tomoy'ement "of thees'preaderA`ris :1a part? As hereinbefore"explained, the@ -forward movementof thismember. in a` downwardly inclined ldirection releases thelever 232.andsthus ca-uses the-` latch-releasing ringerv 224 yto bes-low- 25 eredfrom the position in wl'iichii'it'v isshown'X-r-in Figs; 6 and 'l to aposition inwhiohits shoulder -222 is under the pin'220 on'fthe 'latch|62. '.'Ihe spreader mechanism thereafter lis operatedfto move thewiping and tacking devices outwardly to their initial positions and" tovretractthe tack drivers, the member 242 'reengaging they screw 236 onthe lever. 232 Vand by its downwardsswinging movement moving 1 the'finger 224 upwardly Vto lift'the latch |62 (Fig. 8). This causeslthe Yadditional toe' grippersto bereturnedmtoftheir -initial positions andopenedin the manner' hereinbeforedescribed. Fig. 8 shows the'positionsof :the parts when theadditional"toe'grippers lhave been .only partiallyopened, the.' crossbarzf! 40 not having been movedforwardly'farenough'to cause the'plate-24B (Fig. 3) thereonto swing'rtlie finger224`from under'theY pin 220"to thermal position in which it is shown inFig.`3.

If itshould be `desired-for anyv reasonlto o perate the machinewithoutthe use of the-'advditional toe grippers, these A grippers `may be`moved Arearwardly by the treadle 24'to out-ofthe-way positions and heldin such positions byv the -engagement of'a latch 250 (Fig. '1) with apin 252 on the arm |22, the latch having therethe United States'is:

l. In a machine rfor' shaping uppers' overlasts, a 'shoe vrest for'positioning' a last withanupper thereon, a toe `gripper havingupperigripping faces' arranged to extendgenerally widthwiseof -the lastfor gripping the toe end ofV theupper and for pulling the upper totension it lengthwiseof the last positioned by said shoeire'st,additional upper-gripping means having uppergripping faces alsorarranged to extend'generally widthwiseof the last for grippingthetoeendfof the upper,'and mechanism for operating `rsaid additionalupper-gripping means to pull the vup- Vper preliminarily lengthwiseof'theflast' so"'po sitioned before the upper isgripvped'ibysaid toe v'70` gripper.

lT "of'the last forigripping the-toeendfloffthe upi-ifper sand vror:pulling theV upperj to tension it lengthwise-of the last positioned bysaid shoe rest, additional upper-gripping means having upper-grippingfaces also arranged to extend 'generally widthwiseof the last forgripping the -itoeend of the upper,` and mechanism for oper- 'atingsaidadditional upper-gripping means to "apply a' preliminary pull to theupper to tension `it lengthwiseo'f thelast so positioned before the.upper is grippedby said toe gripper, said additional upper-grippingmeans comprising upperf 'gripping jaws arranged to engage the upper in`locations at opposite sides of the toe gripper.

' 3. Tn ay machine for shaping uppers over lasts, a shoe rest forpositioning a last with an upper thereon, a toe gripper for gripping theupper at the end ofthe toe and for pulling the upper to i tension itYlengthwise of the last positioned by s'aid'shoev rest, additional'grippers arranged respectively Vat opposite sides of said toe gripper,Iand means for operating said additional grippers to. grip the toe' endof the upper and to apply 'a preliminary pull thereto to tension theupper lengthwise of the last before it is gripped by the toe gripper.

' .4. Inra machine for shaping uppers over lasts, a shoe rest forpositioning a last with an upper fthereon, a toe gripper havingupper-gripping 1 facesiarrang'ed to extend generally widthwise ofthelast forgripping'the toe endof the upper, Vsaid toe-gripper beingmounted `for movement in a predetermined direction t'o pull the upperand "thereby totension it` lengthwise of the last positionedby said shoerest, additional upper-grip- 4ping means having upper-grippingiaces alsoarranged to extend generally widthwise of the Alast for gripping the toeend of the upper, said ladditional upper-'gripping means being mountedfor-upperpulling movement in a direction diierent from that of themovement of the toe gripvper and mechanism for thus moving said adfditional upper-gripping means to apply a preliminary pull to the upperto tension it lengthwise -of the last positioned by said shoe restbefore the'upper isfgripped by the toe gripper.

5. In a machine for shapinguppers over lasts, a shoe rest forpositioning a last with an upper thereon -at such' an inclination thatthe bot- 'tom of theA last faces downwardly and rearward- .lyfatoe-gripper having upper-gripping faces arranged to extend generallywidthwise of the last for gripping the toe end of the upper,l saidtoe-gripper being-mounted for movementin a downwardly andrearwardlyinclined direction to pull the upper and thereby to tension itlengthwise of the last-positioned by said shoe rest, AandadditionalAmeans having upper-gripping-faces alsoarranged -to extend generallyVwidthwise of the last for gripping the toe end of. the upper, saidadditional means comprising upper-gripping ljaws arranged toV engage the@upper in locations at opposite sides-of the toe `gripper and -mountedfor movement -rearwardly in I a substantially horizontal. direction forapplying a preliminary pull to the upper to tension it lengthwise of thelast. before the upper is gripped by the toe gripper.

l' end-of the toe and mounted for movement in a downwardly and.rearwardly inclined direction .to pull' the upper and thereby. towtension Ait 16 lengthwise of the last'l positioned by said shoe rest,additional grippers arranged respectively at opposite sides of said toegripper for gripping the toe end of the upper, and means for moving saidadditional grippers rearwardly in a direction diierent from that of themovement of the toe gripper for applying a preliminary pull to the upperto tension it lengthwise of the last before it is gripped by the toegripper.

7. In a machine for shaping uppers over lasts, a shoe rest| forpositioning a last with an upper thereon, a toe gripper for gripping thetoe end of the upper and for pulling the upper to tension it lengthwiseof the last positioned by said `shoe rest in the course of a cycle ofpower operations of the machine, additional means for gripping the toeend of the upper, and mechanism for operating said additionalupper-gripping means to tension the upper preliminarily lengthwise ofthe last and to position it relatively to said toe gripper prior to thestarting of the cycle of operations.

8. In a machine for shaping uppers over lasts, a shoe rest forpositioning a last with an upper thereon, a toe gripper for gripping theupper at the end of the toe and for pulling the upper to tension itlengthwise of the last positioned by said shoe rest in the course of acycle of power operations of the machine, and additional grippersarranged respectively at opposite sides of said toe gripper and movableby the operator for gripping the toe end of the upper and for applyinga, preliminary pull thereto to tension the upper lengthwise of the lastand to position it relatively to said toe gripper prior to the startingof the cycle of operations.

9. In a machine for shaping uppers over lasts, a shoe rest forpositioning a last with an upper thereon, a toe gripper for gripping thetoe end of the upper and for pulling the upper to tension it lengthwiseof the last positioned by said shoe rest in the course of a cycle ofpower operations of the machine, additional upper-gripping means forapplying a preliminary pull to the upper at its toe end prior to thestarting of the cycle of operations to position it relatively to saidtoe gripper and for maintaining the pull thus applied until after thestarting of the cycle, and mechanism for causing said additionalupper-gripping means to release the upper at a predetermined time in thecycle after the gripping of the upper by the toe gripper.

10. In a machine for shaping uppers over lasts. .a'shoe rest forpositioning a last with an upper thereon, a toe gripper for gripping thetoe end of the upper and for pulling the upper to tension it lengthwiseof the last positioned by said n shoe rest in the course of a cycle ofpower operations .of themachine, additional upper-gripping vmeansmovable by the operator prior to the starting of the cycle of operationsfor applying a preliminary pull to the upper at its toe end to positionit relatively to said toe gripper, mechanism for locking said additionalmeans to maintain the Apull on the upper, and mechanism for causing`said additional means to release the upper at a predetermined time inthe cycle of operations after the gripping of the upper by the toegripper.

`1l. In a machine for shaping uppers over lasts, a toe gripper lhavingjawsfor gripping the toe Aend-.of anupper 'on a last and for pulling thepu11 the, upper preliminerily lengthwise. 0i the' -.la,st and :topresent it 'inproper position-between the Vjaws of said; the upper. .y I

i v12. lIna machineforshapingf-uppersoverlasts, af--toegripperghav-inggjaws for gripping the toe end toe gripper beforentheygrip i of an upper on ia lastand for pulling the upper ito 4tension itlengthwise of the .last :in the course of a cycle of power operations.of themachiney additional uppen-grippingmeans for also griplgpingthetoefend-of the upperfand-forjpulling vthe upper fpreliminarilyr--totension rit lengthwise of the -las't andv topresent it vin proper,position between the jaws of said toegrpper 'before they grip theupper,andmeansmovable by the operator thus to operate said additionalupper-gripping means priortothe Ys tartingofthe cycle of operations' 13.-In a'machine for'shapin'g uppersoverlasts,

a toe gripper for grippingithe'itoe lend lof van upper on razlast :andfor `pulling."the upper to tension it lengthwise of the last in thecourse of a cycle of ,power operations of the machine, addiv.tionalupper-gripping means fforgripping the toe .end of the upper'andfcrlapp'lying a preliminary .pull theretoto tension'the 'upperlengthwise of the last and to position 'it vrelatively tosaidltocygripper prior t thestartingof the cycle of operations, anda treadlefor'thusoperatingsaid adto to tension the upper lengthwise of the lastand to position it relatively to said toe gripper prior to the startingof the cycle of operations, and another treadle for thus operating saidadditional upper-gripping means and for thereafter by further movementoperating said rst-named treadle to start the cycle.

15. In a machine for shaping uppers over lasts, a gripper for grippingan upper on a last, a gripper carrier supporting said gripper andmovable to cause it to pull the upper, mechanism on said gripper carrierfor closing the gripper on the upper, means for operating said mechanismthus to close the gripper and for thereafter moving the gripper carrierto pull the upper by continued force applied to said mechanism in thegripperclosing direction, a device for positively locking the grippercarrier against such movement until the gripper is substantially closed,and a member movable into engagement with said device to release 4thegripper carrier.

16. In a machine for shaping uppers over lasts, a gripper for grippingan upper on a last, a

' gripper carrier supporting said gripper and movable to cause it topull the upper, mechanism on said gripper carrier for closing thegripper on the upper, means for operating said mechanism thus to closethe gripper and for thereafter moving the gripper carrier to pull theupper by continued force applied to said mechanism in thegripper-closing direction, a device for positively locking the grippercarrier against such movement during the closing of the gripper, andmeans movable by the gripper-closing mechanism to unlockY thecarrierwhen the ,gripper issubstantially y .'closed.

.17; amachine yforshapinguppers over lasts, aflpper for grip-pingenupperon alast, agripper-carrier supporting vsaid gripper `and .movabletcause rittopull the upper, mechanism on said gripper carrier forYclosing the gripper on the upper, said mechanism-vincluding farotatable .geanmember and a rack bar -foroperati-ng said gmember, meansior operating said rackr bar to close the grh'iper'landj for thereafterAmoving the Ygripper `carrier Lto pullthe lupper by continuedforceapplied jto the rack bar in the gripper- -closing direction, andadevice for locking the gripper carrieragainst such movement until thegripper -is substantially closed and for thengautomatically releasing itto permit its movement.

'gripper carrier Afo1 closing fthe-gripperV on ,the

fupper, said mechanism `including a-Y rotatable Y gear member fend areckbarfQr ,Operating seid member, means Ifor Aoperating Ysaid rack barto VHclose the gripperand for thereafter moving the gripper carrier ,to:pull the upper .by continued .force applied vto-the rack, bari-in theygripper-closing direction, a ...latch for .holding -the gripperrcarrier'against .such movement during the .clos- Aing' .of thegripper,andmeans onsaidlmotatable gear member'for operating said latch torelease vthe carrier when the ,gripper is substantially closed.`

19. In a machine for shaping uppers over lasts, a gripper for grippingan upper on a last, a gripper carrier supporting said gripper andmovable t0 cause it to pull the upper, mechanism on said gripper carrierfor closing the gripper on the upper, means including a spring foroperating said mechanism thus to close the gripper and for thereaftermoving the gripper carrier to pull the upper by continued force appliedto said mechanism in the gripper-closing direction, and a device forholding the gripper carrier against such movement by the spring duringthe closing of the gripper, said device being arranged to be operated bythe gripper-closing mechanism to release the carrier when'the gripper issubstantially closed.

20. In a machine for shaping uppers over lasts,V a gripper for grippingan upper on a last and for pulling the upper, a toggle arranged to bestraightened to close the gripper on the upper,

a spring yieldable to permit the full straightening of the toggle, andmeans for thus straightening the toggle and for thereafter breaking itby further movement thereof in the same direction to cause the gripperto release the upper after the pull.

v2l. In a machine for shaping uppers over lasts, a gripper for grippingan upper on a last and for pulling the upper, a toggle arranged to bestraightened to close thefgripper on the upper, means for thusstraightening the toggle and for thereafter breaking it by furthermovement thereof in the same direction to cause the gripper to releasethe upper after the pull, and a device arranged to act as a stop tolimit the straightening of the toggle and thereafter to release it topermit it thus to be broken.

22. In a machine for shaping uppers over lasts, a gripper for grippingan upper on a last and for pulling the upper, a toggle arranged to bestraightened to close the gripper on the upper,

19 means including a spring for thus straightening the toggle and forthereafter breaking it by further movement thereof in the same directionto cause the gripper to release the upper after the pull, and a devicefor limiting the straightening of the toggle under the iniiuence of thespring and for thereafter releasing it to cause it thus to be broken bythe spring.

23. In a machine for shaping uppers over lasts, a gripper for grippingan upper on a last, mechanism for closing said gripper on the upper,means including a spring for operating said mechanism yieldingly toclose the gripper, and additional positive means arranged to supplementthe force of said spring in operating said mechanism near the end of thegripper-closing operation.

24'. In a machine for shaping uppers over lasts, a gripper for grippingan upper on a last, mechanism for closing said gripper on the upper, amovable operating member, a spring for transmitting force yieldinglyfrom said member to said mechanism for closing the gripper, andadditional means for transmitting force positively from said member tothe gripper-closing mechanism to supplement the action of said springnear the end of the gripper-closing operation.

25. In a machine for shaping uppers over lasts, a gripper for grippingan upper on a last, mechanism for closing said gripper on the upper, amovable operating member, a spring for transmitting force yieldinglyfrom said member to said mechanism for closing the gripper, and a rodarranged to be operated by said member only 'nearr the end of the'gripper-closing operation to l THOMAS AUBREYKKESTEVLL.

REFERENCES `CITED The following references areof record in the iile ofthis patent:

UNITED STATES PATENTS Number Name Date 1,006,821. Bates Oct. 24, 19111,123,662 Bennion Jan. 5, 1915 1,687,824 Y Bodle et al. Oct. 16, 19282,222,212 'Lancaster Nov. 19, 1940 2,377,887 Jorgensen June 12, 19452,423,454 Jorgensen July 8, 1941 2,432,165 Lawson Dec. 9, 1947 FOREIGNPATENTS Number Country Date 12,123 Great Britain of 1911

